WG
William Griffin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Griffin across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Griffin |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Neon Service man |
| Industry | Neon Sign Manufacture |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 624 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Neon Service Man |
| Township / Ward | Malden City |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Madeline Griffin | Daughter | — | 25 | ~1915 |
| Catherine Griffin | Daughter | — | 19 | ~1921 |
| Arline Griffin | Daughter | — | 27 | ~1913 |
| Joseph Griffin | Head | — | 53 | ~1887 |
| Bernard Griffin | Son | — | 13 | ~1927 |
| Joseph Griffin | Son | — | 22 | ~1918 |
| William Griffin | Son | — | 21 | ~1919 |
| James Griffin | Son | — | 16 | ~1924 |
| Eileen Griffin | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Iron Lake State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 21
Middlesex-County, Massachusetts · implied b. ~1919 — 9 household members
| Surname | Griffin |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Occupation | Neon Service man |
| Industry | Neon Sign Manufacture |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 624 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links William Griffin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Griffin
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
Bernard Griffin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arline Griffin
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Griffin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Griffin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Griffin
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Griffin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01609-00651)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marguerite Walker | 41 | Wife | — | Massachusetts |
| 2 | Malcolm Deane | 20 | Stepson | Chauffeur | Massachusetts |
| 3 | Frank White | 46 | Head | Laborer | Massachusetts |
| 4 | Georgiana White | 44 | Wife | — | Massachusetts |
| 5 | Evelyn O. White | 19 | Daughter | House Work | Massachusetts |
| 6 | William A. White | 15 | Son | — | Massachusetts |
| 7 | Claire M. White | 12 | Daughter | — | Massachusetts |
| 8 | Rose G. White | 9 | Daughter | — | Massachusetts |
| 9 | Gordon Babin | 31 | Head | Cook | Massachusetts |
| 10 | Mary Babin | 23 | Wife | Folder | Canada French |
| 11 | Richard Babin | 5 | Son | — | Massachusetts |
| 12 | Elizabeth Babin | 1 | Daughter | — | Massachusetts |
| 13 | Horace Cavanagh | 31 | Head | Cab Driver | Massachusetts |
| 14 | Ethel S. Cavanagh | 31 | Wife | Telephone Operator | Massachusetts |
| 15 | Mary M. Cavanagh | 5 | Daughter | — | Massachusetts |
| 16 | Ellery Butler | 24 | Lodger | Cab Driver | Massachusetts |
| 17 | Ruth Butler | 25 | Lodger | — | Massachusetts |
| 18 | Patricia Butler | 5 | Lodger | — | Massachusetts |
| 19 | Elzana Butler | 3 | Lodger | — | Massachusetts |
| 20 | Lucy A. Deseau | 27 | Lodger | Apprentice Radio Assembler | Canada French |
| 21 | Joseph C. Griffin | 53 | Head | Carpenter | Massachusetts |
| 22 | Eileen D. Griffin | 52 | Wife | — | Massachusetts |
| 23 | Arline R. Griffin | 27 | Daughter | Bookkeeper | Massachusetts |
| 24 | Madeline M. Griffin | 25 | Daughter | Beautician | Massachusetts |
| 25 | Joseph C. Jr. Griffin | 22 | Son | Sheet Metal Work | Massachusetts |
| 26 | Catherine R. Griffin | 19 | Daughter | New Worker | Massachusetts |
| 27 | James Griffin | 16 | Son | — | Massachusetts |
| 28 | Bernard R. Griffin | 13 | Son | — | Massachusetts |
| 29 | William F. Griffin THIS PERSON | 21 | Son | Neon Service Man | Massachusetts |
| 30 | Leo Macgillivray | 52 | Head | Line Man | Canada English |
| 31 | Margaret Macgillivray | 44 | Wife | — | Canada English |
| 32 | Ronald Macgillivray | 13 | Son | — | Massachusetts |
| 33 | Mary Downey | 17 | Niece | — | Canada English |
| 34 | George Stevens | 23 | Head | — | England |
| 35 | Sarah F. M. Stevens | 68 | Wife | — | Massachusetts |
| 36 | Herbert Bobo | 55 | Head | Sheet Metal | Massachusetts |
| 37 | Margaret Bobo | 59 | Wife | — | Massachusetts |
| 38 | Frank De Sousa | 35 | Head | Coil Cleaner | Portugal |
| 39 | Phyllis De Sousa | 34 | Wife | — | Massachusetts |
| 40 | Elaine De Sousa | 12 | Daughter | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)